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Book of Abstracts First Legume Society Conference 2013: A Legume Odyssey Novi Sad, Serbia, 9-11 May 2013
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The establishment of legume for forage and nitrogen usage for subsequence spring
wheat yield formation
Lina Šarūnait÷, Žydr÷ Kadžiulien÷, Leonas Kadžiulis
Institute of Agriculture, Lithuanian Research Centre for Agriculture and Forestry, Lithuania
The potential of legume yield influence the complex of factors and their interactions. These are
greatly dependent on legume species, successful establishment and management. The experiment
was aimed to determine the possibilities of yield formation intensity for forage already in the
sowing year by using adequate combinations of legumes and their cover crops and to explore
organic N of legumes as a potential N source for subsequently grown spring wheat. Two
experiments were carried out on a loamy Endocalcari-Epihypogleyic Cambisol. Legume/grass mixtures
were sown with and without a cover crop of barley or peas for whole crop and barley for grain.
Trifolium pratense L. and Medicago sativa L. were sown in the mixtures with Lolium perenne L., and as
sole stand. The yield of swards, its formation rate and crude protein concentration differed due to
legume species, different competitive plant in the first year and different climate conditions. In
drier years lucerne and ryegrass sward in all cases studied was significantly more productive than
the red clover/ryegrass mixtures, and in wetter years significantly more productive were red
clover than lucerne swards, except for lucerne mixture that grew without a competitive cover
crop. The effect of legume/grass of two years of age on the yield of spring wheat that grew after
them and on nitrogen accumulation in grain significantly differed due to the sward composition
and practically did not differ due to different swards mixtures and combinations of cover crops.
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